Generation Calculator

1. Enter a birth year.
2. Read the generation it belongs to.
3. See the generation's birth-year range.
4. Check the approximate age in 2026.

Here is what each result means:

A generation is a group of people born within a similar span of years who grew up sharing the same major events, technology and culture. Naming generations, such as Baby Boomers or Gen Z, is a shorthand used by researchers, marketers and the media to talk about broad differences in outlook and experience between age groups.

Modern generations each cover roughly 15 to 20 years. The widely cited Pew Research Center definitions put Baby Boomers at 1946 to 1964, Generation X at 1965 to 1980, Millennials at 1981 to 1996, and Generation Z at 1997 to 2012. The youngest cohort, Generation Alpha, covers births from about 2013 onward.

These boundaries are approximate and vary by a year or two between sources, and they describe cultural cohorts mainly in Western countries. Someone born right at the edge of two generations, sometimes called a cusper, may identify with either side. This calculator uses the common Pew cut-offs as a clear, consistent guide.

It matches the birth year against each generation's year range.

1. The birth year is compared with the start and end year of each generation.
2. The generation whose range contains the year is returned.
3. The approximate age is found by subtracting the birth year from the current year.

For other birth-year tools, see the age calculator and the Chinese zodiac calculator.

Take the birth year 1990.

Result: 1990 falls between 1981 and 1996, so it is a Millennial, roughly 36 years old in 2026. A birth year of 2005 is Generation Z, and 1960 is a Baby Boomer.

Here are the widely used cohorts from oldest to youngest.

These follow the Pew Research Center, one of the most commonly cited sources. Older cohorts, the Greatest and Lost generations, cover births before 1928 and are included in the calculator for completeness.

Each generation is shaped by the technology and events of its youth.

These shared experiences are why generations are a useful shorthand, even though every individual is different. The labels describe broad trends, not fixed rules about any one person.

The Birth Year

The generation is decided entirely by the year of birth against the standard ranges.

The Source

Boundaries vary by a year or two between organisations, so a cusp year can differ by source.

Region and Culture

These labels mainly describe Western societies; other regions may define cohorts differently.

Curiosity

Find out which generation you or someone else belongs to.

Marketing and Research

Group an audience by cohort using consistent, cited ranges.

Writing and Media

Check the correct generation label before using it in a piece.

1. Treating Boundaries as Exact

Generation ranges are approximate and vary by a year or two between sources.

2. Forgetting Cuspers

People born at the edge of two generations may identify with either side.

3. Assuming the Same Ranges Worldwide

These labels mainly fit Western countries and may not match cohorts elsewhere.

4. Confusing Gen Y and Millennials

They are the same generation; Gen Y is simply the older name for Millennials.

5. Using Birth Month

Generations are defined by birth year alone, not the month or day.

The result follows the Pew Research Center ranges, which are widely used but approximate.

Enter your birth year and the calculator names your generation. For example, 1990 is a Millennial and 2005 is Generation Z, using the Pew Research ranges.

Pew gives Baby Boomers 1946 to 1964, Gen X 1965 to 1980, Millennials 1981 to 1996, and Gen Z 1997 to 2012. Gen Alpha runs from about 2013.

Someone born in 1990 is a Millennial, the cohort born from 1981 to 1996. In 2026 that is roughly 36 years old.

They are the same generation. Gen Y is the older name, and Millennial is the term now more commonly used.

Under the Pew definition, Generation Z covers births from 1997 to 2012. Births from about 2013 are counted as Generation Alpha.

No. They are approximate and vary by a year or two between sources. People born on a boundary, called cuspers, may identify with either generation.

The cohort after Generation Alpha, expected to begin around 2025, is often called Generation Beta, though the name and dates are not yet settled.

Mostly they describe Western countries. Other regions have their own cohorts shaped by different events, so the same years may not apply.

No. The calculation runs in your browser and nothing you enter is stored or sent anywhere, unless you choose Save, which keeps the result only on this device.

• Generation (Wikipedia).
• Where Millennials end and Gen Z begins (Pew Research Center).
• List of generations (Wikipedia).